daft.functions.timestamp_millis#

def timestamp_millis(expr: Expression) -> Expression:
    """Creates a timestamp from milliseconds since Unix epoch.

    Args:
        expr: A numeric expression representing milliseconds since epoch.

    Returns:
        Expression: a Timestamp[us] expression.

    Examples:
        >>> import daft
        >>> from daft.functions import timestamp_millis
        >>> df = daft.from_pydict({"ms": [0, 1609459200000]})
        >>> df = df.with_column("ts", timestamp_millis(df["ms"]))
        >>> df.schema()["ts"].dtype == daft.DataType.timestamp("us")
        True
    """
    return Expression._call_builtin_scalar_fn("timestamp_millis", expr)